US369360A - Machine for splitting the tangs and forming the sockets of shovel-blanks - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1 H. M. MYERS.

MACHINE FOB SPLITTING THE TANGS AND FORMING THE SOCKETS 0P SHOVEL BLANKS.

No. 369,360. Patented Sept. 6, 1887 8mm, aw bo a N, PETERS Photo-Lithographer. wmm l a. c

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No. 369,360. Patented Sept. 6, 1887.

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No. 369,360. Patented Sept. 6, 1887.

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HENRY MILTON MYERS, OF BEAVER FALLS, PENNSYLVANIA.

MACHINE FOR SPLITTING THE TANGS AND FORMING THE SOCKETS OF SHOVEL-BLANKS.

SPECIFICATION forming part of Letters Patent No. 369.360, dated September 6, 1887.

Application filed March 31, 1887.

To all; 10750722, it may concern:

Be it known that I, HENRY MILTON ll'iYnns, a citizen of the United States, residing at Beaver Falls, in the county of Beaver and State of Pennsylvania, have invented certain new and useful Improvements in Machines for Splitting the Tang's and Forming the Sockets of Shovel- Blanks; and I do hereby declare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which it appcrtains to make and use the same.

My invention relates to machines for splitting the tang and forming the socket in blanks for shovels, spades, and scoops, and has special reference to improvements in the splittingmachine shown in my patent, No. 348,037, dated August 24, 1886.

The invention will be hereinafter described, and particularly pointed out in the claims.

In the accompanying drawings, which form a part of this specification, Figure 1 represents a front elevation of my improved machine; Fig. 2, a side elevation. Figs. 3, A, and 5 are details on an enlarged scale.

Reference being had to the drawings and the letters marked thereon, A represents an ordinary punching-machine, having what is known as a stop-motion, and in the reciprocating head 13 is secured by a set-screw, a, a double'ended splittingknife, O. The knife is provided with a fiat side, I), and beveled sides 0, and reciprocates between guide-plates d c, which are secured in rabbets in the face of the machine by bolts f, which pass through elongated slots g in said plates, and are adjusted laterally to take up wear by bolts h in the sides of the machine.

I) represents a shovel-blanl;,wl1iel1 fits in a recess, i, formed in the wall or plate E is a back plate of the same configuration as the blank, is placed in the recess 2 in the rear of the blank, and is adjusted by screws 1 Z for accommodating shovel-blanks of differeut thicknesses.

The blanks D are held in position while being splitby eccentric cams m m, which are mounted upon a shaft, or, which is supported in suitable journal-boxes, 0, and is operated by a trcadle, 31, under which is a spring, g,

Serial No. 233,157. (No model.)

.for disengaging the cams from the blank, and

is connected to the rock-shaft n by a. link, 1-, and arm s.

The machine being constructedsubstantially as described, the operation is as follows: A blank, D, being placed in the recess i, the knife 0 descends and splits the tang of the blank, forming the bifurcated arms 1 2, and penetrates the body of the blank suiiiciently to form the socket to receive the end of the wooden handle. As the knife descends, the beveled side 0 bonds the arm 1 outward,while the flat side I) of the knife and the walls of the recess 27 support the arm 2 of the tang. The cams on 'm, bearing against the outer surface of the blank under pressure exerted upon them by the foot of the operator, hold the blank firmly in its seatin the recess i and secure it against displacement by the knife as it descends through the tang into the body of the blank, and as the arm 1 is free to bend outward, the knife will pursue a straight or perpendicular course through the tang. After the tang has been split the spring 1 under the treadle p raises the latter and disengagcs the cam m m from the split blank, when it may be removed by any suitable means, such as tongs, a little cinder thrown into the split portion of the tang and the socket, and the arm 1 closed down upon the arm 2, when the blank is ready for the rolls for reducing it into a shovcl-blade.

Instead of clamping the blank by means of a treadle, the rock-shaft a, carrying the eccentriecams m m, may be connected to the reciprocatin g head 13 and the clamping action made automatic and synchronous with the splitting action.

Having thus fully described my invention, what I claim is 1. A blanksplitting machine having a recess formed in a wall of the machine for supporting a shovel-blank, in combination with a knife for splitting the tang and forming the socket and suitable means for securing the blank against lateral displacement, substantially as described.

2. A blank-splitting machine having a recess formed in a wall of the machine, a back plate of the configuration ol. the blank, and adjusting-screws, in combination'with a reciprocating knife and clamping mechanism outward and to hold the other arm to its seat 10 adapted to bear against one side of the blank, in the recess as the knife advances into the substantially as and for the purpose set forth. tang, substantially as described.

3. A blank-splitting machine provided with In testimony whereof I affix my signature in a recess for supporting the body of a shovelpresence of two witnesses. blank and one arm of the tang while the lat- HENRY MILTON MYERS. ter is being split, in combination with aknifc l Witnesses: having a flat and a tapered side, the latter be- J. F. MERRIMAN, ing adapted to bend the free arm of the tang l JOHN REEVEs.

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